fba38641   
   From: tony.miklos@gmail.com   
      
   Corvette Bob wrote:   
   > HI Guys,   
   >   Just picked up my first jukebox and trying to get it operating   
   > correctly.  Here is the symptom - When first turned on and no   
   > selections made and still in scan mode; the trip coil becomes   
   > energized after 2 to 3 seconds.  When I do make a selection, it will   
   > stop wherever it wants and try to load a record.  It loads the record,   
   > clamps it, and just when the needle starts to make contact with the   
   > record, rejects it.  It drops down without issue - then starts the   
   > cycle and repeats it till powered off.  I checked the safety plunger   
   > and that works fine.  I also checked the record trip switch and that   
   > works fine.  I even removed the ground connection for the record trip   
   > switch without any difference. I took the trip coil out, inspected &   
   > cleaned it and installed a 1 amp fuse in the circuit. I found that the   
   > trip coil is constantly energized. The 2050 tube looks good but I will   
   > test it on a friends tester this week. Been reading some tests for the   
   > tube and will try them as well later this week. I've noticed that the   
   > cam switch has some contacts not correctly set.  Could this cause my   
   > problem?  I've used carbon tetrachloride to clean electrical contacts   
   > in the past. Is this OK to use on these contacts?  Might be a little   
   > overkill, but I don't think it would hurt them. One last note - If I   
   > hold down the release lever, it will play the record completely but I   
   > can feel the vibration from it being energized.  Thanks for any help   
   > you can provide.   
   > Bob   
      
   The key words are that this happens *after 2 to 3 seconds*.  I'd guess   
   the selection receiver has problems and may need a complete rebuild if   
   it hasn't been done yet.  If the solenoid pulled in immediately I'd   
   steer toward the mech first, and actually that is still a possibility.   
   You will need to obtain a set of operation and troubleshooting guides.   
   Probably cost $40 to $60 but is a very wise investment.  If you prefer   
   to send the selection receiver out for rebuilding, lots of people,   
   including me do that type of work.   
      
   Tony   
      
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